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5.7-2 余弦函数的图象与性质
Author:
GeoGebra Institute of WuXi
GeoGebra
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判斷球體
兩組對邊相等和有直角的四邊形
【案例】圆柱体内放置一个大球六个小球
柱體建築師
球体的体积推导
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[問題] a² + b² = 1, (c-4)² + (d-2)² = 5，求 ad - bc 最大值？
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Locus: P equidistant from two fixed points
橢圓3--平行四邊形法
活工(一)Q2
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LCM and GCD
Algebra
Cube
Cosine
Difference and Slope